Pontiac, MI Weather & Growing Conditions
Today
66°F
Rain Showers Likely
Rain showers likely before 2pm, then showers and thunderstorms likely. Cloudy. High near 66, with temperatures falling to around 63 in the afternoon. East wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Rain Showers Likely | 8 mph E | 71% |
| Tonight | 58°F | Patchy Fog | 3 to 8 mph E | 89% |
| Sunday | 68°F | Chance Rain Showers | 6 to 12 mph NNE | 51% |
| Sunday Night | 52°F | Mostly Cloudy | 12 mph NE | 1% |
| Monday | 62°F | Mostly Cloudy | 12 mph NE | 2% |
| Monday Night | 48°F | Mostly Cloudy | 12 mph NE | 3% |
| Tuesday | 62°F | Partly Sunny | 14 mph NE | 9% |
| Tuesday Night | 50°F | Chance Rain Showers | 14 mph ENE | 43% |
| Wednesday | 61°F | Chance Rain Showers | 12 to 15 mph ENE | 51% |
| Wednesday Night | 51°F | Chance Rain Showers | 8 to 12 mph ENE | 43% |
| Thursday | 64°F | Slight Chance Rain Showers | 9 mph ENE | 19% |
| Thursday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NE | 15% |
| Friday | 68°F | Mostly Sunny | 6 to 9 mph NE | 9% |
| Friday Night | 51°F | Mostly Clear | 5 to 8 mph NE | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pontiac, MI
Last spring frost
Apr 26
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6a
Explore more for Pontiac, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Pontiac Wwtp, Mi (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.